Home / 13,641.20-20,449.38-4,874.06

Finding the Fourth Proportional to 13,641.20, 20,449.38 and 4,874.06

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Solution

The fourth proportional to 13,641.20, 20,449.38 and 4,874.06 is: 7,306.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,641.20 : 20,449.38 = 4,874.06 : x
  2. Step 2: Convert to fraction form
    13,641.20/20,449.38 = 4,874.06/x
  3. Step 3: Cross multiply
    13,641.20x = 20,449.38 × 4,874.06
  4. Step 4: Simplify right side
    13,641.20x = 99,671,402.84
  5. Step 5: Solve for x
    x = 99,671,402.84/13,641.20
  6. Step 6: Final answer
    x = 7,306.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.